Self-closing window ventilator



Sept. 23, 1930. I R. H. PROCTER 1,776,370

I SELF CLOSING WINDOW VENTILATOR Filed Sept. 14. 1927 2 Sheets-Sheet 1 A ORNEY s Q INVENTOR Se t. 23, 1930. R. H/PRCCTER saw CLOSING wmnow' vnmrui'dik Filed Sept. 14, 1927 I INVENTOR l'cfzardflfl fadax ORNEY Patented Sept, 23, 1930 arse res

RICHARD H. PROCTER, OF CHICAGO, ILLINOIS Emil- CLOSING WINDOW VENTILA'I'OB Application filed September 1t, 1827. Serial Ho. 219,448.

An object of this invention is to provide a window ventilator which may be closed from a distant point, either at the will of the operator or through time-operated or other 5 automatically controlled means. The invention also covers mechanism whereby the closing of the ventilator will tend to control the %eating plant so as to increase the amount of cat.

More specifically, the invention resides in a ventilator which is removably and adjustabl secured in a frame placed in a window casing, and which is spring actuated toward the closing position.

Means are also provided for holdin the ventilator open against the tension 0 the said spring, which said means may be released by suitably constructed and associated electrically or clock mechanism operated devices to allow the said spring to return the ventilator to its closed position.

Other objects will in part be obvious and in art be pointed out hereinafter.

o the attainment of the aforesaid objects and ends, the invention further resides in the novel details of construction, combination and arrangement of parts, all of which will ,be first fully described in the followin detailed description, then be particu arly pointed out in the appended claims, reference being had to the accompanying draw- 1?! the accompanying drawings: Figure 1 is a face view of a portion of a window with the invention mounted thereon "and in the open position, a means for electrically effecting the closure of the ventilator from a remote point being also shown, Figure 2 is a vertical cross section taken on the line 2-2 of Figure 1,

Figure 3 is a vertical cross section taken on the line 3-3 of Figure 1, Fi re 4 is a horizontal section taken on the line 44 of Figure 2,

view of the release lever actuating clock mechanism, "T

Figure 7 is a detail face view of the alarm knocker, and Figure 8 is a detail perspective view of a portion of the release gear, the association of the shaft dog with the gear notches being also shown.

In the drawings in which like numerals of reference indicate like parts in all the figures, cc 1 designates a Window casing which includes the usual sill 2, andthe insidelorlower sash 3 of which operates in opposed grooveways formed between the inside guide strips 4 and the parting strips 5.

The parts thus far described are all of conventional form.

In carr ing out the principles of the in vention, provide U-shaped side frame plates 6, one of which is secured by screws, 7 or other suitable securing means, to the inner face of each guide strlp 4 just above the sill 2 and with the 0 en channel formed by the U facing the said strip seeFigures 1 and 4. The ventilator panel, which includes the open rectangular frame 8 and glass body 9, is hinged or ivoted to the frame plates 6 adjacent the si 1 2 as indicated at 10. The panel is also provided with side win 5 11 that fit more or less snugly between t e inside side limits of the window casing, see Figsvl and 4.

Felt strips 12 are secured to the frame plates 6 to serve as fillersfor closing the spaces between the said plates and the movable p'anel wings 11 against free air assage. A similar felt strip 13 is secured a on the upper outside face edge of the panel rame 8 to engage the window sash, when the parts are'in the position shown in dotted lines in Figure 2, to prevent free passage of air be tween the lower edge of the said sash and the opposing edge of the panel frame, and 7 still another felt strip 14 is secured to the bottom or hinged edge of the panel frame to' engage the sill 2 for a like air excluding purpose.

A spring 15 is connected at 16 to and in the hollow of one of the frame plates 6, and is partially movable through an opening 17 l0.

tends to hold the ventilator in the closed position shown in dotted lines in Figure '2.

A triangular shaped keeper latch 19 is pivotally mounted at 20 in the hollow of the spring-equipped frame plate and has an extension finger 21 which projects through a suitable slot 22 formed in the plate 6 and into an arcuate eccentric slot 23 in the adjacent panel frame wing 11. The slot 23 is so shaped that as the. ventilator panel is moved to the open position the defining walls of the slot will engage the finger extension 21 and cause the latch 19 to rock downwardly on its pivot so that the lower or lock heel end thereof will engage and be locked to position by the notched upper leg of the bell crank lock dog 24 which is pivoted in suitable I position on the said frame plate 6.

A spring 25 normally forces the lock dog 24 in the latch engaging direction and against an end of a release lever 26 which is hori zontally reciprocable in suitable bearings and has its other end projected for constant engagement with one arm of the bell cranlk armature lever 27. The lever 27 is pivoted at 28 on a suitable frame support 29 and is adapted to be rocked at times, when the electro-magnet 30 is energized to force the lever 26 longitudinally and efiect a releasing of the lock dog and latch to permit the spring 15 to close the ventilator... For this purpose the electro-magnet is connected in an energized open circuit diagrammatically indicated at 31 and which includes a remotely positioned push button 32 by which the circuit may be closed to efiect the release of the lock devices and closing of the ventilator. Hereinbefore, I have disclosed means for electrically eflecting closure of the'ventilator from a remote point. Obviously, however, the lock devices may be released manually to effect closing of the ventilator, or they maymanually rotatable alarm set shaft 34, and

any continuously and steadily rotated shaft forming a part of the time mechanisms, for example the hour hand shaft, both of which are supported by parts of the clock framing generally indicated at 36, A train of gears 37 imparts rotation to the release gear 38 which is loosely mounted on the shaft 34 and includes a hub extension having a ventilator release notch 39 and an ,ialarm release notch 40 therein and arranged progressively in the order mentioned in a given direction of rotation.

The shaft 34 carries a lug or dog 41 which coacts with the notches 39 and 40 of the release gear 38 in a manner soon to be described.

- A crank member 42 is mounted in suitable bearings on a portion of the clock framing 36 so as to berockable about a vertical axis, and the said member has one arm extension 43, which extends out of and beyond the clock casing and is held in constant engagement with the ventilator release lever 26 by a spring 44, and another arm 45 extended and bent to engage the. rear face of the release gear 38 to constantly hold it against the shaft dog 41.

The'usual alarm lever release leaf spring I is indicated at 46 and is yieldably mounted at 47 on the clock frame; has its central portion engaging the release gear 38 atthe rear to be held by that gear against its outward or forward springing tendency, and has the usual lock finger extension 48 to engage the alarm release lever 49 and hold it out of motion.

The rock shaft 50 which carries the lever 49 also .carries the alarm knocker 51 which is extended beneath the shaft 50 and carries the spaced cam fingers 52 which are alternately engaged by the star wheel 53 wheneverthe lever, 49 is freed to impart the usual bell ringing oscillatory motion to the knocker. The star wheel 53 is urged to rotate 'by the usual energy storing spring equipment 54.

In operation the user sets the alarm indicator finger carried by the shaft 34 to the time at which he desires the alarm to ring. As the time gear train 37 rotates the release gear once each twelve hours, corresponding to the rotational timing of the hour hand, and as the ventilator release notch 39 is arranged a predetermined distance ahead of the alarm release notch 40, say for example a distance equivalent to two hours of release gear movement, the said notch 39 will be moved into register with the dog 41 first and A permit the release gear 38. to be forced forwardly by the arm 43 the distance of the depth of the notch, allowing the other arm '45 to push in on the release lever-26 to re-' lease the ventilator latch and allow theventilator to close under urge of the spring 15.

Two hours later the alarm release notch 40 will have been moved into register with the dog 41 and the release gear will be forced outwardly a distance equivalent to the depth of the said notch 40. The first or ventilator release movement of the gear 38 was not sufficient to release the spring 46, 48 from looking engagement with the alarm release lever 49, but this last mentioned movement does 51 to be oscillated to ring the alarm.

Obviously the spacing of or distance be- 7 tween the notches 39 and 40 may be varied to render longer or shorter the interval by which the ventilator closing action will precede the alarm ringing.

With either form of the invention, an electric switch may be associated by having the throw lever 56 thereof link connected as at 57, 35 to the ventilator panel so that when the panel is closed the switch will automatically be actuated toclose the electric circuit. The switch may be connected to turn on any heating element (not shown) or with mechanism for opening the furnace drafts (also not shown) so that the previously ventilated room may be heated up by the time the alarm is sounded.

While I have herein disclosed specific means for automatically releasing the ventilator, it is to be understood that the same,

may be released manually, and any other mechanical releasing devices may be em-- ployed such as come within the scope of the appended claims. Y

From the foregoing description, taken in connection with the accompanying drawing,

it is thought that the novel details of construction, the manner of use and the advantages of my invention will be readily apparent to those skilled in the rt to which it relates. p

I claim as my invention:

1. The combination of a window ventilator, an alarm sounding means and means associated with the said alarm sounding means and the ventilator to effect a closing of the ventilator at a predetermined interval in advance of the alarm sounding, a circuit closing switch, and means connecting the switch with the ventilator so that the said switch will be actuated when the ventilator is closed Y to close the circuit in which it is connected.

2, In ventilators, the combination of. side frame strips, a ventilator panel. pivoted at its lower edge to and between the strips and having side wings, means tending to close the ventilator panel, one of said strips having a lock latch mounted thereon, one of said wings having a lock slot therein, and said latch having a lock finger engaging in said slot, a lock dog adapted to engage and hold the latch when the ventilator is moved to the open position to cause the lock finger to ening a lock latch mounted thereon, one of said wings having a lock slot therein, and said ventilator panel, one of said strips having a lock latch mounted thereon, one of said wings having an eccentric lock slot therein, and said latch having a lock finger engaging in said slot, a lock dog adapted to engage and hold the'latch when the ventilator is moved to the open position to cause the lock finger to engage in the wing slot and lock the ventilator open, and means to release the lock dog to allowthe ventilator to close.

5. In ventilators, the combination of side frame strips, a ventilator panel pivoted at its lower edge to and between the strips and having side wings, a spring tending to close the ventilator panel, one of said strips havingia lock latch mounted thereon, one of said wings having a lock slot therein, and said latch having a lock finger engaging in said slot, a lock dog adapted to engage and hold the latchwhen the ventilator is moved to the open position to cause the lock finger to engage in the wing slot and lock the ventilator open, and means to release the lock dog to allow the ventilator to close, said side frame strips being hollow to encase the spring, the latch and the lock dog.

6. In window ventilators, the combination with the window casing including the sill and side guide strips, of side frame strips removably secured to the guide strips, a ventilator panel pivoted at its lower edge adjacent the sill and to and between the side frame strips, a spring connected to one side frame strip and to the panel to tend to hold the panel closed, wings on the panel and movable between the frame strips, one of said wings'having an eccentric slot therein, a latch pivoted to one frame strip and having a lock finger projected into the eccentric slot, a bell crank lock dog having one arm thereof notched and positioned to be locked engaged by the latch when the panel is moved to the open position, and means to move the lock dog to release the latch and permit the panel to close.

7. In window ventilators, the combination with the windowcasing including the sill and side guide strips, of side frame strips removably secured to the guide strips, a ventilator panel pivoted at its lower edge adjacent the sill and to and between the side frame strips, a spring connected to one side frame strip and to the panel to tend to hold the panel closed, wings'on the panel and movable between the frame strips, one of said wings position,

means to move having an eccentric slot therein, a latch pivoted to one frame strip and having a lock finger projected into theeccentric slot, a bell crank lock dog having one arm thereof notched and positioned to be lock engaged by the latch when the panel is moved to the open and means to move the lock dog to release the latch and permit the panel to close, said eccentric slot and lockfinge'r being cooperatively arranged whereby the slot will move the latch to the lock dog engaging position when the anel is moved to its open position and the ngerwill hold the panel to its openposition until the lock dog and latch are released.

' 8. In window ventilators, thecombination with the window casing including the sill and side guide strips, of side frame strips removably secured to the guide strips, a vent lator panel pivoted at its lower edge adjacent the sill and to and between the side frame strips, a spring connected to one side frame strip and to the panel to tend to hold the panel closed, wings on the panel and movable between the frame strips, one of said wings having an eccentric slot therein, a latch pivoted to one frame strip and having a lock finger projected into the eccentric slot, a bell cranklock dog having one arm thereof notched and positioned to he look engaged by the latch when the panel is moved to the open position, the lock dog to release the latch and permit the panel to close, felt strips interposed between the wiiigs and the side frame strips, a felt strip secured on the lower edge of the panel and engaging the sill, and a felt strip at the upper inside edge of the panel for the purpose described.

the spring may recede at times and for housing the latch and. the lock dog. 10. The combination of a ventilator, means to hold the ventilator open,

an alarm sounding means and means actuated bythe said alarm sounding means to release the ventilator holding, means to permit the ventilator to swing on its pivot to a closed posit-ion at a predetermined interval in ad- Vance of the alarm sounding.

11. The combination ofa swingable window ventilator independent of the window sashes, means tending to close the ventilator, means to hold the ventilator open against the closing tendency, and clock mechanism including devices to sound an alarm at a predepivoted window termined interval, and said clock mechanism I including means to release the said holding means at a specified time in advance of the sounding of the alarm.

v In testimony whereof, I have hereunto subscribed my name. RICHARD H. PROCTER.

9. In window ventilators, the combination with the window casing including the sill and side guide strips, of side frame strips removably secured to the guide strips, panel pivoted at its lower ed e adjacent the sill and to' and between the side frame strips, a spring connected to one side frame strip and t0 the panel to tend to hold thepanel a ventilator closed, wings on the panel and movable between theframe strlps, one of said wings having an eccentric slot therein, a latch pivoted to one frame strip and having a lock finger projected into the eccentric slot, a bell crank lock dog having one arm thereof-notched and positioned to be lock engaged by the latch when the panel is moved to the open position,

. leased, at least one of said side frame strips I being Uv-shaped to provide a space into which 

